Alert archive / Florida / Red Flag Warnings in 2020
Red Flag Warning 2, NWS Tallahassee, FL
NWS Tallahassee, FL issued this red flag warning at May 11, 2020, 7:54 AM CDT for 13 counties in Florida. It took effect at May 11, 2020, 1:00 PM CDT. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 11, 2020, 7:54 AM CDT (12:54 UTC)
- In effect from
- May 11, 2020, 1:00 PM CDT
- Expired
- May 11, 2020, 7:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Tallahassee, FL
Counties Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Madison County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL
The radar
The Tallahassee radar (KTLH), 60 km from the middle of the area, began a volume at 12:58 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 0.9 hours before the alert went out and 63 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2368 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
899 WWUS82 KTAE 111254 RFWTAE URGENT - FIRE WEATHER MESSAGE National Weather Service Tallahassee FL 854 AM EDT Mon May 11 2020 ...RED FLAG WARNING IN EFFECT FROM THIS AFTERNOON THROUGH THIS EVENING FOR PORTIONS OF THE FLORIDA PANHANDLE AND BIG BEND FOR CRITICALLY LOW RELATIVE HUMIDITY COMBINED WITH SUSTAINED WINDS OF 15 MPH AND HIGH ERC VALUES... FLZ007>019-026-027-108-112-114-115-118-127-120000- /O.UPG.KTAE.FW.A.0001.200511T1800Z-200512T0000Z/ /O.NEW.KTAE.FW.W.0002.200511T1800Z-200512T0000Z/ North Walton-Central Walton-Holmes-Washington-Jackson-Inland Bay- Calhoun-Inland Gulf-Inland Franklin-Gadsden-Leon-Inland Jefferson- Madison-Liberty-Inland Wakulla-South Walton-Coastal Bay- Coastal Gulf-Coastal Franklin-Coastal Jefferson-Coastal Wakulla- 854 AM EDT Mon May 11 2020 /754 AM CDT Mon May 11 2020/ ...RED FLAG WARNING IN EFFECT FROM 2 PM EDT /1 PM CDT/ THIS AFTERNOON TO 8 PM EDT /7 PM CDT/ THIS EVENING... The National Weather Service in Tallahassee has issued a Red Flag Warning, which is in effect from 2 PM EDT /1 PM CDT/ this afternoon to 8 PM EDT /7 PM CDT/ this evening. The Fire Weather Watch is no longer in effect. * WIND...North 15 mph. * HUMIDITY...Minimum values 24 to 28 percent. * ERC VALUES...Generally 28 to 39 with Washington and Bay counties at 46. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ DVD
Nearby
Red Flag Warnings in Florida, 2020Every red flag warning in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.